QC

Short for "quality content." Exclusively used online, especially in the context of shitposting

ALICE: posts a collage of thousands of pictures of Ewan McGregor's head making up a single larger image of Ewan McGregor's head

BOB: QC.

pulling a Chakotay

Crashing a vehicle. Derived from Commander Chakotay's notorious inability to get in a shuttlecraft without crashing it or otherwise blowing it up on Star Trek: Voyager.

"You keep speeding like that, you're gonna be pulling a Chakotay sooner or later -- if the cops don't catch you first."